Answer:
6d-30
Step-by-step explanation:
6(d-5)
6d-30 distributive property
The 15% error
C.
1.7 meters
because an equilateral triangle has 3 sides and they are all the same you can just divide 5.1 by 3
5.1 / 3 = 1.7
it is 1.7 m
$5803.20
x-y=0
Hope this helped